What happens in the heat of the moment when I unfollow someone because they've said something that mildly annoyed me and now I want their timeline back? I can't just follow them again. That's bad twitterquette.

Did Twitter become famous because Aston Kutcher joined up and got a million followers? Was it a success because Oprah talked about it and spent 15 minutes of her attention on it? Does the fact that President Obama supposedly has a Twitter account make the site a success?